docs: def skip(roman_numeral, skip=1):
      """Skip the given places to the next roman numeral.
  
      Examples:
      >>> skip('I')
      'II'
      >>> skip('VII')
      'I'
      >>> skip('I', 2)
      'III'
      """
      i = numerals.index(roman_numeral) + skip
      return numerals[i % 7]